Huh? Barycentric motion is the motion of all the objects about the solar systems center of mass. The main influences are the Sun and Jupiter. The barycenter is just outside the surface of the Sun. Since the orbital period of Jupiter is about 12 years, the Sun orbits the barycenter once every 12 years.

The grand solar minimum is a hypothesized future minimum in solar activity similar to the Maunder Minimum around 1650 - 1700. It represents a disruption of the sunspot cycle.

Since total solar irradiance measures show that since 1975 the sunspot cycle represents a 1 W/m^2 variation in the total solar irradiance out of a mean of 1366 W/m^2. This is a 0.07% variation between solar min and solar max. We cannot perceive with our eyes a 0.07% variation.

long ago NASA dumped some 250 tons on lithium six and lithium seven into the sun ( to study solar magnetic fields as they told) , but fact is they shortened the sun life by 50 % and raising its temperature one hundred fold ...

in fact shifting its spectra toward the UV green ...

wile the ETs were jerking off watching earth women I suppose, as they did shit to stop it ..